The "newest drivers" at nVidia always always ALWAYS make things worse. Even worse than the godawful nVidia drivers Microsoft includes with XP.
You need to install OLDER better drivers in this case.
https://www.feldoncentral.com/Sachs/help.html
When you install the appropriate driver, it will keep asking you "Do you want to keep the newer file?" and you have to answer No each time. Otherwise you'll have some pieces installed of one version, and then all the buggy "new" files of 12.90 installed as well.
Post here if you have any further trouble getting this to work. I posted a 15 step guide to reinstalling nVidia drivers but the search engine doesn't seem smart enough to let me search for that.